Differential D7446 Diff 19161 head/sys/dev/cxgbe/adapter.h

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head/sys/dev/cxgbe/adapter.h

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* Egress Queue: driver is producer, T4 is consumer.		* Egress Queue: driver is producer, T4 is consumer.
*		*
* Note: A free list is an egress queue (driver produces the buffers and T4		* Note: A free list is an egress queue (driver produces the buffers and T4
* consumes them) but it's special enough to have its own struct (see sge_fl).		* consumes them) but it's special enough to have its own struct (see sge_fl).
*/		*/
struct sge_eq {		struct sge_eq {
unsigned int flags; /* MUST be first */		unsigned int flags; /* MUST be first */
unsigned int cntxt_id; /* SGE context id for the eq */		unsigned int cntxt_id; /* SGE context id for the eq */
		unsigned int abs_id; /* absolute SGE id for the eq */
struct mtx eq_lock;		struct mtx eq_lock;

struct tx_desc desc; / KVA of descriptor ring */		struct tx_desc desc; / KVA of descriptor ring */
uint16_t doorbells;		uint16_t doorbells;
volatile uint32_t udb; / KVA of doorbell (lies within BAR2) */		volatile uint32_t udb; / KVA of doorbell (lies within BAR2) */
u_int udb_qid; /* relative qid within the doorbell page */		u_int udb_qid; /* relative qid within the doorbell page */
uint16_t sidx; /* index of the entry with the status page */		uint16_t sidx; /* index of the entry with the status page */
uint16_t cidx; /* consumer idx (desc idx) */		uint16_t cidx; /* consumer idx (desc idx) */
▲ Show 20 Lines • Show All 292 Lines • ▼ Show 20 Lines	struct sge {
struct sge_wrq ctrlq; / Control queues */		struct sge_wrq ctrlq; / Control queues */
struct sge_txq txq; / NIC tx queues */		struct sge_txq txq; / NIC tx queues */
struct sge_rxq rxq; / NIC rx queues */		struct sge_rxq rxq; / NIC rx queues */
struct sge_wrq ofld_txq; / TOE tx queues */		struct sge_wrq ofld_txq; / TOE tx queues */
struct sge_ofld_rxq ofld_rxq; / TOE rx queues */		struct sge_ofld_rxq ofld_rxq; / TOE rx queues */
struct sge_nm_txq nm_txq; / netmap tx queues */		struct sge_nm_txq nm_txq; / netmap tx queues */
struct sge_nm_rxq nm_rxq; / netmap rx queues */		struct sge_nm_rxq nm_rxq; / netmap rx queues */

uint16_t iq_start;		uint16_t iq_start; /* first cntxt_id */
int eq_start;		uint16_t iq_base; /* first abs_id */
		int eq_start; /* first cntxt_id */
		int eq_base; /* first abs_id */
struct sge_iq *iqmap; / iq->cntxt_id to iq mapping */		struct sge_iq *iqmap; / iq->cntxt_id to iq mapping */
struct sge_eq *eqmap; / eq->cntxt_id to eq mapping */		struct sge_eq *eqmap; / eq->cntxt_id to eq mapping */

int8_t safe_hwidx1; /* may not have room for metadata */		int8_t safe_hwidx1; /* may not have room for metadata */
int8_t safe_hwidx2; /* with room for metadata and maybe more */		int8_t safe_hwidx2; /* with room for metadata and maybe more */
struct sw_zone_info sw_zone_info[SW_ZONE_SIZES];		struct sw_zone_info sw_zone_info[SW_ZONE_SIZES];
struct hw_buf_info hw_buf_info[SGE_FLBUF_SIZES];		struct hw_buf_info hw_buf_info[SGE_FLBUF_SIZES];
};		};
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